Morris Minor Owners Club

My garageman is working on another Morris Minor and he is curious about the brake system.

It has brake discs on the front and he would like to know what conversion they are and what they have come off of.

This sounds a bit vague to me and I am sure someone will need more information, but he has asked me to post the question!

Elaine

Marina was more common if it was done in the 80's
Sierra was more common since the mid 90's, and presenlt Sierra and Escort are common.
Other stuff like Midget can also be done.

The wheel stud pattern can be a give away - if it has Ford wheels, then Escort / Sierra.
If it has Marina 13" wheels, then Marina
However, any of the kits can be converted to keep the Minor wheels...

Sometimes it's best to take the pad to the car spares shop (the main distributor/shop will have the best stock on site) then you can compare the pads to the replacement to find the right ones.

Thanks Ray, I will let him know.

Has anyone done a marina disc conversion, and if so do you know the torque setting for the hib nut, and how much to back the nut off afterwards, cheers Ben

Ben,
The procedure for this (& any other tapered wheel bearing hub) is to nip up the hub nut, then back off slightly so there is a slight amount of preload on the bearings. Too loose, you'll have freeplay. Too tight, the bearings won't last.
The wheel should spin freely, just slightly slower than if the bearings were loose.

Cheers scot, when you say nip up..is there not a torque setting then? Aslo i think my discs are binding slightly as they have just been fitted so how do i tell if its the bearing thats causing it to slow not the dics, other than by the sound?

iwant1,
Did you remove the cup seal frtom then m/c? that can cause binding disks.
The other likely cause is sticky calipers (especially on old second hand parts).
to check the wheel bearing, carfully push the pads back a bit so they are clear of the disk, then it should be easier to feel/hear the bearing

so how do i tell if its the bearing thats causing it to slow not the dics, other than by the sound?

Pop the pads out while you are adjusting the bearings, nipping is just putting enough pressure to take up all the slack the torque would be tiny 3-5 lb max I would think but I have never used a torque wrench for nipping up so its a bit of a guess.

Beat me to it Ray

Yeah i removed the little rubber from the valve cup, do you mean to prise apart the parts just whilst i check, or to take off the calipers then refit when set up?

Just take the pads out so there is no friction on the discs and they can spin freely.

No need to take the calipers off while setting the bearings, Ray meant just push them both back to give clearance on the disc or as I suggested just remove them if new as getting the clearance can be a bit tight.

Beaten to it again.

I must stop work getting in the way of posting

haha! yeah i'll try popping them out a bit seeing as they're old not too tight then by the sounds of it might need some new bearings.

if the pads won't go back any further it might be best to remove the pads ( especially when new as there isn't always any clearance).
with modernish Ford (pin slider) calipers you just need to remove one allen bolt and then the whole, caliper pivots out of the way - makes a very quick job!

hmm, marina discs!

Excellent guys! all odne and no need for new bearings, took the calipers off in the end seeing as its not too hard. Although theres loads of play in the top part of the suspension can i tighten the nut up to get rid of the play, looks like theres a split pin to go through there as well.